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Probing multiscale transport and inhomogeneity in a lithium-ion cells using in-situ neutron methods

Journal Article · · ACS Energy Letters
 [1];  [2];  [2];  [3];  [2];  [2];  [4];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); State Univ. of New York, Binghamton, NY (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Saudi Basic Industries Coropration (SABIC), Houston, TX (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Indian Institute of Technology, Hyderabad (India). Dept. of Chemistry
Here, we demonstrate for the first time the lithiation process in graphitic anodes using insitu neutron radiography in a pouch cell format. The neutron absorption contrast shows a direct correlation between degree of lithiation and the discharge voltage plateau. Furthermore, we provide a semi-quantitative comparison between the observed spatial variations of neutron attenuation line profile across the graphite electrode and the calculated lithium concentration profiles computed under similar electrochemical discharge conditions. In conjunction, in situ neutron diffraction of a similar pouch cell under identical test protocol was carried to obtain information about the local phase changes upon lithiation. Combined in-situ radiography and diffraction opens up a powerful nondestructive method to understand the multi-scale nature of lithium transport and degradation in practical lithium-ion cells.
Research Organization:
Manufacturing Demonstration Facility (MDF); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR); Spallation Neutron Source
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1327604
Journal Information:
ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 5 Vol. 1; ISSN 2380-8195
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (9)

4D imaging of lithium-batteries using correlative neutron and X-ray tomography with a virtual unrolling technique text January 2022
Review of Recent Development of In Situ/Operando Characterization Techniques for Lithium Battery Research journal May 2019
In Situ Probing Multiple-Scale Structures of Energy Materials for Li-Ion Batteries journal May 2019
4D imaging of lithium-batteries using correlative neutron and X-ray tomography with a virtual unrolling technique journal February 2020
Striping modulations and strain gradients within individual particles of a cathode material upon lithiation journal January 2018
Probing transport limitations in thick sintered battery electrodes with neutron imaging journal January 2020
RHEGAL: Resistive heating gas enclosure loadframe for in situ neutron scattering journal September 2018
Simultaneous Operando Measurements of the Local Temperature, State of Charge, and Strain inside a Commercial Lithium-Ion Battery Pouch Cell journal January 2018
Characterization of Crystallographic Structures Using Bragg-Edge Neutron Imaging at the Spallation Neutron Source journal December 2017

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